AI 中文总结
该研究探讨自主量子活塞热机，推导有限时间主方程，发现反芝诺效应可提升操作速率并产生更多功，确立有限时间热库采样为增强热机操作的机制。
AI 中文摘要
量子热机的反芝诺增强效应已在由外部经典场驱动的工作流体中得到证实，但用量子活塞替代经典驱动时，该量子优势是否仍存在尚不清楚。本文研究一种自主热机，其中二能级工作流体耦合到量子简谐活塞及两个频谱分离的热库，无需外部调制。我们推导了载流子和边带通道的有限时间主方程，其速率随耦合时间变化可在芝诺、反芝诺及马尔可夫 regime（ regime 译为“ regime” 保留原词）间插值。对于初始相干的活塞，该热机会为活塞充电，且在反芝诺窗口中产生比马尔可夫参考更多的功。反转相同保留通道可将该装置变为有限资源制冷机，实现增强的冷却效果。因此，反芝诺效应提升了操作速率，同时保持了基础载流子和边带能量比率不变，这些比率在本文考虑的操作 regime 中仍符合常规卡诺界限。我们的结果确立了有限时间热库采样作为一种机制，可在无外部调制的情况下增强带量子活塞的自主热机操作。
英文摘要
Anti-Zeno enhancement of quantum heat machines has been established for working fluids driven by an external classical field, but whether the same quantum advantage survives when a quantized piston replaces the classical drive has remained open. Here we study an autonomous thermal machine in which a two-level working fluid is coupled to a quantized harmonic piston and to two spectrally separated reservoirs, without external modulation. We derive a finite-time master equation for the resulting carrier and sideband channels, whose rates interpolate between the Zeno, anti-Zeno, and Markovian regimes as the coupling time is varied. For an initially coherent piston, the machine charges the piston and generates more ergotropy than the Markovian reference in the anti-Zeno window. Reversing the same retained channels turns the device into a finite-resource refrigerator with enhanced cooling. The anti-Zeno effect therefore increases the rate of operation while leaving the underlying carrier and sideband energy ratios unchanged. These channel ratios remain consistent with the usual Carnot bounds over the operating regimes considered here. Our results establish finite-time reservoir sampling as a mechanism for enhancing autonomous thermal-machine operation with a quantized piston, without external modulation.
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